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Full machine-readable index: https://core-electronics.com.au/llms.txt # Adafruit TPL5111 Low Power Timer Breakout **Type:** Product page · **SKU:** ADA3573 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/adafruit-tpl5111-low-power-timer-breakout.html ([markdown](https://core-electronics.com.au/adafruit-tpl5111-low-power-timer-breakout.html.md)) With some development boards, low power usage is an afterthought. Especially when price and usability are the main selling points. So what should you do when it's... ## Pricing - **Price:** $10.45 (inc GST) — $9.50 AUD, exc GST - **Quantity discounts:** 10+ $9.22 (exc GST) · 50+ $9.03 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 24 and Aug 27. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA3573:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA3573:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description With some development boards, low power usage is an afterthought. Especially when price and usability are the main selling points. So what should you do when it's time to turn around and make that project of yours run on a battery or solar? Sure you *could* try to hot-air that regulator off, or you could jerry-rig a relay. Or, use a 555? Ugh, the options aren't that great. The **Adafruit TPL5111 Reset Enable Timer** is a stand-alone breakout that will turn *any* electronics into low-power electronics! It will take care of enabling & disabling your electronics using a built in timer that can vary from once-every 100ms up to once every two hours. Basically, the TPL will set an enable pin high periodically, adjustable by potentiometer or resistor, and turn on your project's power. It will then wait until a signal is received from the project to tell the TPL that it can safely disable the project by setting the enable pin low. We also have a [**TPL5110** breakout](https://core-electronics.com.au/adafruit-tpl5110-low-power-timer-breakout.html), which rather than setting an enable pin high/low, connects and disconnects power. The **TPL5111** breakout is best when you have an enable pin you can control, the **TPL5110** is best when you are able to 'break' the power input line to place the **TPL5110** between the power supply and Vin. Usage is easy. First, set your desired delay but adjusting the on-board trim pot: all the way to the left is once-per-100ms and all the way to the right is once-every-2-hours. Then, connect VDD up to your 3-5V project power supply, and then your project's enable pin to the Enable pin. Finally, select a signal pin from your project to the Done pin. In your project's code or design, just make sure that it sets the Done pin high once it is completed with its task. That's it! While the TPL5111 is running (but the remainder of the project is de-powered) the current draw is about 20uA (according to Adafruit's Monsoon Power Meter). If you want to turn the device on by hand, you can also activate the TPL by pressing the onboard tactile switch (or wire your own switch to the Delay pin) See? Your power problems just got *solved!* Comes as a fully assembled breakout board with a TPL5111 chip, all components on-board, and some header. A little light soldering is required to put it together for breadboard use. ## Technical Details [**For code, libraries, wiring examples, CAD files, Fritzing and more, check out the guide!**](https://learn.adafruit.com/adafruit-tpl5111-reset-enable-timer-breakout/overview) Product Dimensions: 19.5mm x 17.8mm x 5.0mm / 0.8" x 0.7" x 0.2" Product Weight: 1.4g / 0.0oz - [Datasheet](https://core-electronics.com.au/attachments/localcontent/3573_datasheet_121006629f8.pdf) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/3/5/3573-00.jpg)